package org.openkanban.client.util;

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
public abstract class StringUtils {

    public static boolean isNumeric(String str) {
	if (str == null) {
	    return false;
	}
	int sz = str.length();
	for (int i = 0; i < sz; i++) {
	    if (Character.isDigit(str.charAt(i)) == false) {
		return false;
	    }
	}
	return true;
    }

    public static String toString(String valueAsString) {
	if (valueAsString == null) {
	    return "";
	}
	return valueAsString;
    }
}
